Download AKTU B-Tech 4th Sem 2014-15 Electromagenetic Field Theory Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 4th Semester (Fourth Semester) 2014-15 Electromagenetic Field Theory Question Paper

Printed Pages : 2
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(Following Paper ID and Roll No. to be ?lled in your Answer Book)
PAPER ID : 131407
Roll N o.
B. Tech.
(SEM. IV) THEORY EXAMINATION, 2014-15
ELECTROMAGNETIC FIELD THEORY (EMFI?)
Tlme : 2 Hours] [Total Marks : 50
l Attempt any four question. All parts carry 3.5X4=l4
equal marks. ?
(a) State divergence theorem and Stroke theorem.
(b) Explain the physical interpretation of curl.
(0) Convert the Cartesian coordinate system into
cylindrical coordinate system. '
(d) Transform the point P(l,l,6) in W coordinate
(e) Explain the gradient of a scalar ?eld. Also explain
its physical interpretation.
(f) Write the laplaee equation in all three coordinate
system.
2 Attempt any two questions. All QuestiOn carry 6X2=12
equal marks. 7
' (a) Find .the potential, functiOn and electric ?eld
intensity for the region between two concentric
right circular cylinder where V=Vo at r=a and
V=0 at r=b (b>a)?
131407] 1 ?[ Contd...

(b) Find the electn'c ?eld intensity due to in?nitely bug
charged wireaine charge). ?
(c) Derive Energy Density in electrostatic ?eld.
3 Attempt. any two questions. All Question cany 6xz=12
equal marks.
(a) State and explain maxwell's equatitms in di??etm?al
and integral form. .
(b) Explain magnetic boundary conditions.
(c) State and explain Bio savan law. Derive magnetic
?eld intensity due to in?nitely long wire carrying
current I.'
4 Attempt any two questions. All Question cany 6X2=12
equal marks. -
(a) Find the value of (1,3, for good conductors.
Show that angle of characteristic impedance .is
always 45? for good conductors.
(b) Derive the mathematical acpression for poynting
(c) Find the expression for a , B y, for lossless or
perfect dielect?c medium. A 10 GHZ plane
wave traveling in ?ve spacehas an amplitude
of Ex=10 V/m. Find V, n ,B , x aridfhe amplitude
of H.
131407] ' 2 [10875]